From the 1 of 21 linked papers with an AI index.
21 papers
DESI DR2 Results IV: Alcock-Paczyński Measurements from the Lyman Alpha Forest and Cosmological Constraints
DESI Collaboration, A. G. Adame, J. Aguilar +164
The DESI DR2 analysis measures the Alcock‑Paczynski effect using the full shape of Lyman‑α forest auto‑ and cross‑correlations, achieving 1% precision at redshift 2.33 and providin…
Late-Time Oscillating Quintessence in Light of DESI
Jun-Qian Jiang, Mustafa A. Amin, Arman Shafieloo
Recent DESI baryon acoustic oscillation measurements, especially when combined with Type Ia supernova and CMB data, sharpen the case for possible low-redshift dynamics in the dark…
Metastability in Emergent Dark Energy: A New Framework Confronting Cosmological Observations
Xiaolei Li, Tonghua Liu, Tian-Nuo Li +3
We propose the Metastable Emergent Dark Energy (MEDE) model, a novel phenomenological extension of the Phenomenological (PEDE) and Generalized (GEDE) Emergent Dark Energy framework…
-probe: A new diagnostic of dark energy based on
Satadru Bag, Ryan E. Keeley, Varun Sahni +1
Recent DESI data suggest that dark energy may be evolving and motivate the use of model-independent diagnostics such as and probes of the equation of state (EoS) of dark en…
Finding Strongly Lensed Supernovae from Blended Light Curves
Sangwoo Park, Arman Shafieloo, Alex G. Kim +2
We present a model-independent, photometry-only framework for identifying strongly lensed supernovae when multiple images are unresolved and blended into a single point source. Bui…
Model-independent consistency tests of DESI DR2 BAO and SN Ia
Hyeok Woo, William Luke Matthewson, Arman Shafieloo
Cosmic distances can be measured using two complementary probes: Type Ia supernovae (SN Ia), serving as standard candles, and baryon acoustic oscillations (BAO), serving as standar…